When data is collected using a qualitative nominal variable What is true about a frequency distribution that summarizes the data quizlet?

When data is collected using a qualitative nominal variable What is true about a frequency distribution that summarizes the data quizlet?

Terms in this set (21) A pie chart can be used to summarize the data. When data is collected using a qualitative, nominal variable, what is true about a frequency distribution that summarizes the data? The classes are not mutually exclusive.

What is frequency in a data set?

The frequency (f) of a particular value is the number of times the value occurs in the data. The distribution of a variable is the pattern of frequencies, meaning the set of all possible values and the frequencies associated with these values.

What is frequency data collection?

FREQUENCY / EVENT & RATE RECORDING. Description: These methods involve counting the number of times a behavior occurs in a specific time period. Use these methods if the behavior can be easily counted and the behavior has a clear beginning and end.

How do you find the median of a point of intersection of a cumulative frequency curve?

The median can be obtained graphically by plotting the Ogives of less than type and more than type and locating the point of intersection of both the Ogives. The x-coordinate of the point of intersection of the two Ogives gives the median of the grouped data.

What is the term which refers to the data presented in the form of frequency data table?

Data presented in form of frequency distribution is called grouped data.

What is the number of observations in each class of a frequency distribution called?

Class intervals The frequency of a class interval is the number of observations that occur in a particular predefined interval. So, for example, if 20 people aged 5 to 9 appear in our study’s data, the frequency for the 5–9 interval is 20.

When data is collected using a quantitative ratio variable What is true about a frequency distribution that summarizes the data quizlet?

When data is collected using a quantitative, ratio variable, what is true about a frequency distribution that summarizes the data? -Upper and lower class limits must be calculated. -A pie chart can be used to summarize the data. -Number of classes is equal to the number of variable’s values plus 2.

When successive midpoints in a histogram are connected by straight lines the graph is called?

A polygon is a graph formed by joining the midpoints of the tops of successive bars in a histogram with straight lines.

How do you find the cumulative frequency of an ogive?

The cumulative frequency is calculated by adding each frequency from a frequency distribution table to the sum of its predecessors. The last value will always be equal to the total for all observations, since all frequencies will already have been added to the previous total.

What is the range of data?

In statistics, the range is the spread of your data from the lowest to the highest value in the distribution. It is the simplest measure of variability.

What is frequency observation?

The frequency of a class interval is the number of observations that occur in a particular predefined interval. So, for example, if 20 people aged 5 to 9 appear in our study’s data, the frequency for the 5–9 interval is 20. The endpoints of a class interval are the lowest and highest values that a variable can take.

What is a frequency count observation?

A frequency count is a recording of the number of times that a you engaged in a behavior during a specific time-period (e. g., during a class period). Frequency counts can be used to track behaviors that you want to increase or decrease.

What measure of central tendency is the intersection of less than ogive and greater than ogive?

Median
Median is central tendency when ‘less than orgive’ & ‘more than orgive intersect’.

How do you find the median of a point of intersection of cumulative frequency curves less than and more than cumulative frequency curves?

If both, less than and greater than, cumulative frequency curve is drawn on the same graph, we can easily find the median value. The point in which, both the curve intersects, corresponding to the x-axis, gives the median value.

What is the term which refers to the total number of observations below a certain value?

Cumulative frequency is used to determine the number of observations that lie above (or below) a particular value in a data set.

What is a distribution table?

Frequency Distribution Tables A frequency distribution table is a chart that summarizes values and their frequency. It’s a useful way to organize data if you have a list of numbers that represent the frequency of a certain outcome in a sample. A frequency distribution table has two columns.